As you probably already know, defending US National Cyclocross champion was literally knocked out of this year’s nationals by another rider. He suffered a concussion and was taken to the hospital without finishing the race. Here is the video of the collision:
Found on veloreview.
dog4aday on 
What kind of a course “design” is that???
hmmm…..and here I thought he was fakin’ it.
Brian…..mtb in 08!!!!yeah!